./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_61_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d34d14d-53f3-44a5-b635-052bf86d462d/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d34d14d-53f3-44a5-b635-052bf86d462d/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d34d14d-53f3-44a5-b635-052bf86d462d/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d34d14d-53f3-44a5-b635-052bf86d462d/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_61_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d34d14d-53f3-44a5-b635-052bf86d462d/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d34d14d-53f3-44a5-b635-052bf86d462d/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 989e6c455156ebae5504eabe977a595207f220711402a373c7b868b5dceff99a --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 07:49:25,488 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 07:49:25,545 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d34d14d-53f3-44a5-b635-052bf86d462d/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-64bit-Automizer_Default.epf [2024-12-02 07:49:25,550 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 07:49:25,550 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 07:49:25,571 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 07:49:25,572 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 07:49:25,572 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 07:49:25,572 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 07:49:25,572 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 07:49:25,572 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 07:49:25,573 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 07:49:25,573 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 07:49:25,573 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 07:49:25,573 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 07:49:25,573 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 07:49:25,573 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 07:49:25,573 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 07:49:25,573 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 07:49:25,573 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 07:49:25,574 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 07:49:25,574 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 07:49:25,574 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-02 07:49:25,574 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-02 07:49:25,574 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 07:49:25,574 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 07:49:25,574 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 07:49:25,574 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 07:49:25,574 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 07:49:25,574 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 07:49:25,574 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 07:49:25,574 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:49:25,575 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 07:49:25,575 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 07:49:25,575 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 07:49:25,575 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 07:49:25,575 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:49:25,575 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 07:49:25,575 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 07:49:25,575 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 07:49:25,575 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 07:49:25,575 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 07:49:25,575 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 07:49:25,575 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 07:49:25,575 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 07:49:25,576 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 07:49:25,576 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 07:49:25,576 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d34d14d-53f3-44a5-b635-052bf86d462d/bin/uautomizer-verify-84ZbGMXZE1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 989e6c455156ebae5504eabe977a595207f220711402a373c7b868b5dceff99a [2024-12-02 07:49:25,806 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 07:49:25,814 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 07:49:25,817 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 07:49:25,818 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 07:49:25,818 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 07:49:25,819 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d34d14d-53f3-44a5-b635-052bf86d462d/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_61_bad.i [2024-12-02 07:49:28,545 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d34d14d-53f3-44a5-b635-052bf86d462d/bin/uautomizer-verify-84ZbGMXZE1/data/4eb286c58/065cc8375ea3440d9cea3203c04d16c0/FLAG1def79d56 [2024-12-02 07:49:28,800 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 07:49:28,801 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d34d14d-53f3-44a5-b635-052bf86d462d/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_61_bad.i [2024-12-02 07:49:28,821 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d34d14d-53f3-44a5-b635-052bf86d462d/bin/uautomizer-verify-84ZbGMXZE1/data/4eb286c58/065cc8375ea3440d9cea3203c04d16c0/FLAG1def79d56 [2024-12-02 07:49:28,836 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d34d14d-53f3-44a5-b635-052bf86d462d/bin/uautomizer-verify-84ZbGMXZE1/data/4eb286c58/065cc8375ea3440d9cea3203c04d16c0 [2024-12-02 07:49:28,838 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 07:49:28,840 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 07:49:28,841 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 07:49:28,841 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 07:49:28,846 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 07:49:28,847 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:49:28" (1/1) ... [2024-12-02 07:49:28,847 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@418e4a54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:49:28, skipping insertion in model container [2024-12-02 07:49:28,848 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:49:28" (1/1) ... [2024-12-02 07:49:28,882 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 07:49:29,532 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 07:49:29,538 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 07:49:29,613 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 07:49:29,727 INFO L204 MainTranslator]: Completed translation [2024-12-02 07:49:29,728 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:49:29 WrapperNode [2024-12-02 07:49:29,728 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 07:49:29,729 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 07:49:29,729 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 07:49:29,729 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 07:49:29,733 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:49:29" (1/1) ... [2024-12-02 07:49:29,749 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:49:29" (1/1) ... [2024-12-02 07:49:29,767 INFO L138 Inliner]: procedures = 498, calls = 24, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 99 [2024-12-02 07:49:29,767 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 07:49:29,767 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 07:49:29,768 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 07:49:29,768 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 07:49:29,774 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:49:29" (1/1) ... [2024-12-02 07:49:29,774 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:49:29" (1/1) ... [2024-12-02 07:49:29,776 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:49:29" (1/1) ... [2024-12-02 07:49:29,785 INFO L175 MemorySlicer]: No memory access in input program. [2024-12-02 07:49:29,785 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:49:29" (1/1) ... [2024-12-02 07:49:29,785 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:49:29" (1/1) ... [2024-12-02 07:49:29,789 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:49:29" (1/1) ... [2024-12-02 07:49:29,789 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:49:29" (1/1) ... [2024-12-02 07:49:29,791 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:49:29" (1/1) ... [2024-12-02 07:49:29,792 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:49:29" (1/1) ... [2024-12-02 07:49:29,793 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:49:29" (1/1) ... [2024-12-02 07:49:29,795 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 07:49:29,796 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 07:49:29,796 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 07:49:29,796 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 07:49:29,796 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:49:29" (1/1) ... [2024-12-02 07:49:29,801 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:49:29,812 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d34d14d-53f3-44a5-b635-052bf86d462d/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:49:29,822 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d34d14d-53f3-44a5-b635-052bf86d462d/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 07:49:29,825 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d34d14d-53f3-44a5-b635-052bf86d462d/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 07:49:29,849 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-12-02 07:49:29,849 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-12-02 07:49:29,849 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 07:49:29,849 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 07:49:29,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 07:49:29,950 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 07:49:29,952 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 07:49:30,128 INFO L? ?]: Removed 60 outVars from TransFormulas that were not future-live. [2024-12-02 07:49:30,128 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 07:49:30,137 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 07:49:30,137 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-02 07:49:30,137 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:49:30 BoogieIcfgContainer [2024-12-02 07:49:30,138 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 07:49:30,140 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 07:49:30,140 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 07:49:30,144 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 07:49:30,144 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 07:49:28" (1/3) ... [2024-12-02 07:49:30,145 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c684808 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:49:30, skipping insertion in model container [2024-12-02 07:49:30,145 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:49:29" (2/3) ... [2024-12-02 07:49:30,145 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c684808 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:49:30, skipping insertion in model container [2024-12-02 07:49:30,146 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:49:30" (3/3) ... [2024-12-02 07:49:30,147 INFO L128 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_sub_61_bad.i [2024-12-02 07:49:30,163 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 07:49:30,164 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG CWE191_Integer_Underflow__int_rand_sub_61_bad.i that has 2 procedures, 42 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2024-12-02 07:49:30,215 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 07:49:30,228 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3782e624, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 07:49:30,228 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-12-02 07:49:30,232 INFO L276 IsEmpty]: Start isEmpty. Operand has 42 states, 36 states have (on average 1.4444444444444444) internal successors, (52), 38 states have internal predecessors, (52), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-12-02 07:49:30,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-12-02 07:49:30,239 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:49:30,239 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:49:30,240 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-12-02 07:49:30,243 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:49:30,243 INFO L85 PathProgramCache]: Analyzing trace with hash 73723781, now seen corresponding path program 1 times [2024-12-02 07:49:30,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:49:30,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252360015] [2024-12-02 07:49:30,249 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:49:30,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:49:30,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 07:49:30,359 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 07:49:30,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 07:49:30,420 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-12-02 07:49:30,422 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-02 07:49:30,423 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-12-02 07:49:30,425 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-12-02 07:49:30,426 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 07:49:30,431 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2024-12-02 07:49:30,455 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 07:49:30,458 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 07:49:30 BoogieIcfgContainer [2024-12-02 07:49:30,458 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 07:49:30,458 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 07:49:30,458 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 07:49:30,458 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 07:49:30,459 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:49:30" (3/4) ... [2024-12-02 07:49:30,460 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-12-02 07:49:30,501 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 7. [2024-12-02 07:49:30,537 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d34d14d-53f3-44a5-b635-052bf86d462d/bin/uautomizer-verify-84ZbGMXZE1/witness.graphml [2024-12-02 07:49:30,538 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d34d14d-53f3-44a5-b635-052bf86d462d/bin/uautomizer-verify-84ZbGMXZE1/witness.yml [2024-12-02 07:49:30,538 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 07:49:30,539 INFO L158 Benchmark]: Toolchain (without parser) took 1699.19ms. Allocated memory is still 117.4MB. Free memory was 89.0MB in the beginning and 78.7MB in the end (delta: 10.3MB). Peak memory consumption was 16.6MB. Max. memory is 16.1GB. [2024-12-02 07:49:30,539 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 117.4MB. Free memory was 72.4MB in the beginning and 72.3MB in the end (delta: 86.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 07:49:30,540 INFO L158 Benchmark]: CACSL2BoogieTranslator took 886.99ms. Allocated memory is still 117.4MB. Free memory was 88.8MB in the beginning and 71.2MB in the end (delta: 17.7MB). Peak memory consumption was 49.5MB. Max. memory is 16.1GB. [2024-12-02 07:49:30,540 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.14ms. Allocated memory is still 117.4MB. Free memory was 71.2MB in the beginning and 68.4MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 07:49:30,540 INFO L158 Benchmark]: Boogie Preprocessor took 27.45ms. Allocated memory is still 117.4MB. Free memory was 68.4MB in the beginning and 66.5MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 07:49:30,541 INFO L158 Benchmark]: RCFGBuilder took 342.07ms. Allocated memory is still 117.4MB. Free memory was 66.5MB in the beginning and 51.6MB in the end (delta: 14.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 07:49:30,541 INFO L158 Benchmark]: TraceAbstraction took 318.16ms. Allocated memory is still 117.4MB. Free memory was 51.2MB in the beginning and 83.7MB in the end (delta: -32.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 07:49:30,541 INFO L158 Benchmark]: Witness Printer took 79.66ms. Allocated memory is still 117.4MB. Free memory was 83.7MB in the beginning and 78.7MB in the end (delta: 5.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 07:49:30,543 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 117.4MB. Free memory was 72.4MB in the beginning and 72.3MB in the end (delta: 86.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 886.99ms. Allocated memory is still 117.4MB. Free memory was 88.8MB in the beginning and 71.2MB in the end (delta: 17.7MB). Peak memory consumption was 49.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.14ms. Allocated memory is still 117.4MB. Free memory was 71.2MB in the beginning and 68.4MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 27.45ms. Allocated memory is still 117.4MB. Free memory was 68.4MB in the beginning and 66.5MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 342.07ms. Allocated memory is still 117.4MB. Free memory was 66.5MB in the beginning and 51.6MB in the end (delta: 14.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 318.16ms. Allocated memory is still 117.4MB. Free memory was 51.2MB in the beginning and 83.7MB in the end (delta: -32.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 79.66ms. Allocated memory is still 117.4MB. Free memory was 83.7MB in the beginning and 78.7MB in the end (delta: 5.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 1555]: integer overflow possible integer overflow possible We found a FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1562] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={1:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1562] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1563] CALL CWE191_Integer_Underflow__int_rand_sub_61_bad() [L1551] int data; [L1552] data = 0 [L1553] CALL, EXPR CWE191_Integer_Underflow__int_rand_sub_61b_badSource(data) [L1569] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1569] EXPR ((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1569] EXPR ((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1569] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1569] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1570] return data; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \result=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1553] RET, EXPR CWE191_Integer_Underflow__int_rand_sub_61b_badSource(data) [L1553] data = CWE191_Integer_Underflow__int_rand_sub_61b_badSource(data) [L1555] data - 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1555]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 42 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 16 NumberOfCodeBlocks, 16 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-12-02 07:49:30,562 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d34d14d-53f3-44a5-b635-052bf86d462d/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)